petroleum

A Marathon Petroleum spokesman says no one was hurt after a fire at a refinery in Detroit.

Shane Pochard tells The Associated Press the fire started Saturday evening in one of the smaller tanks at the Marathon Petroleum refinery. He says the fire has been put out and the cause is being investigated.

Pochard says no employees or contractors were injured. He says Marathon Petroleum has conducted extensive air monitoring in the neighborhood where the refinery is located and the area is safe.

DETROIT (AP) - Tests by the Michigan Department of Environmental Quality have found that hulking black mounds along the banks of the Detroit River in southwest Detroit don't pose a threat to human health.

The petroleum coke, or pet coke, mounds are a byproduct of oil refining used in energy production. The material has been brought by trucks from the nearby Marathon Petroleum Co. refinery, and the mounds drew attention starting earlier this year.

Area residents, the Canadian government and U.S. lawmakers are among those concerned about potential pollution and health effects.

Findlay, Ohio-based Marathon Petroleum says the pet coke stored along the Detroit River is no longer owned by the company. If stored properly, however, Marathon says pet coke poses no environmental concerns.